I went to Coolest Projects Japan 2026, the first-ever exhibition event of its kind in Japan, so I'll introduce it here (it's scheduled to be held again next year).

I had the opportunity to speak at the Minecraft Cup, an event that helped shape who I am today. There were things I didn't get to say, so I'll include those here in this blog post.

I'm Sosei Tokumaru, a Mitou Junior 2024 Super Creator who just turned 19. Since it might look like I've been quiet online after finishing Mitou Junior, I thought I'd share a public update on what I've been up to, as far as I'm able to.

Why Do People Move?

A record of the time my budgie escaped.

Hello, I'm Soumame, 18 years old. I lived in Malaysia for about five years, and at the end of...

Looking Back Only at the Failures of 2024!

This article is part of the Mitou Junior Advent Calendar. ...

Hi. I'm Soumame, 17 years old. The other day (well, some time ago), I was able to get a driver's...

For those thinking “This is just your opinion, right?” — yes, that's right. This post is mainly...

I'm a high school student currently in Year 11, and I've been attending Peninsula International...

This topic gets asked quite often, so I’m putting it together here on note. For Bedrock (the...

※This article is a work in progress and its contents may change in the future.

I've read...

I created a list of cities you should secure in the early game. Please take a look if you'd like....

I've heard that the language-learning app Duolingo uses machine learning everywhere — where exactly is it used? I looked into it.

Operating a Minecraft server has become a fundamental skill it seems, so I'll jot down how to create one. (Source: Me) I hope to write a proper article someday, but for now, I'll just write it casually.

With the advancement of LLMs, it has become easier to verbalize human behavior and analyze conversations with others. However, I felt that none of it quite fit, so I thought about various aspects from both technical and usability perspectives.

I liked Obsidian's graph view, so I implemented it on my own website.

For those of you who have registered a GitHub account but don't use it because you're not a developer, here's a brief guide on how to use it.

If you've used Google Docs or Word, you can select bold, italic, headings and so on like...

When starting team development, it's often difficult to decide how to work together. This article summarizes tools that may be useful in such cases.

Hello. I'm Souma.

:::message This article is part of the [MITOU Junior Advent Calendar](https://adv...

Hello everyone. My name is Sousei Tokumaru, also known as Sōmame. About a year ago, I became deeply...

This is a re-publication of an article I wrote on another site last year.

It's super easy. I'll...

Sometimes you just feel like building a blog site.

For sites of a certain size, you don't need to...

This article is a re-upload of an article I wrote a while ago.

When people hear the term...

Notion is convenient, isn't it? I also migrated from Trello and find it very useful, but there is...

Here's a quick explanation.

What You Need

1. A computer

2. An email address

##...

Thoughts on AI-generated code

It's 2026. That means 2025 is over. I want to say plainly: the New Year is a new year.

I learned that some people claim LLMs are assisting suicide, and now that many people casually use these mysterious black-box LLMs, I want to think about how I should relate to LLMs.

From an era of buying books to learn to an era of asking AI. I consider the potential "stagnation of knowledge" that could result from the breakdown of returns to people who produce knowledge behind that convenience.

Probably everyone except the extremely wealthy faces this problem

LLMs, image generation, and other advances are happening so fast that keeping up has become a hassle.

I finally bought it.

I get the impression that WebSocket is used in a lot of places.

About access permissions for UNIX-like systems such as Linux

The World Wide Web (WWW) came up in class, so I took notes and decided to publish them on the web.

The role of HTML

HTML stands for HyperText Markup Language, and is a language for describing...

People often call it a markup language; isn't it a programming language?

A short guide to the online whiteboard tldraw.